Home / 5,077.85-7,615.70-1,613.21

Finding the Fourth Proportional to 5,077.85, 7,615.70 and 1,613.21

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Solution

The fourth proportional to 5,077.85, 7,615.70 and 1,613.21 is: 2,419.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.85 : 7,615.70 = 1,613.21 : x
  2. Step 2: Convert to fraction form
    5,077.85/7,615.70 = 1,613.21/x
  3. Step 3: Cross multiply
    5,077.85x = 7,615.70 × 1,613.21
  4. Step 4: Simplify right side
    5,077.85x = 12,285,715.33
  5. Step 5: Solve for x
    x = 12,285,715.33/5,077.85
  6. Step 6: Final answer
    x = 2,419.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.